Progress in interventional cardiology: challenges for the future
Sakine Simsekyilmaz, Elisa A Liehn, Constantin Militaru
1Felix Vogt, MD, Department of Cardiology, Pulmonology, Intensive Care and Vascular Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany, Tel.: +49 241 80 35525, Fax: +49 241 80 82716,
Insights
New coronary stents aim to reduce complications like thrombosis and in-stent restenosis (ISR). Innovations include polymer-free drug-eluting stents (DES) and fully biodegradable options for better cardiovascular disease treatment.
Area of Science:
- Cardiology
- Biomaterials Science
- Interventional Cardiology
Background:
- Cardiovascular disease is a leading global cause of mortality.
- Percutaneous coronary interventions are common but face challenges like stent thrombosis and in-stent restenosis (ISR).
- Improving stent efficacy and safety is crucial for patient outcomes.
Purpose of the Study:
- To review advancements in coronary stent technology.
- To highlight strategies addressing limitations of current coronary stents.
- To discuss novel stent designs and their potential clinical impact.
Main Methods:
- Review of literature on coronary stent development.
- Analysis of strategies to mitigate stent-related complications.
- Examination of emerging technologies like polymer-free and biodegradable drug-eluting stents (DES).
Main Results:
- Development of polymer-free DES to minimize inflammatory responses.
- Emergence of stents with cell-directing drugs to enhance re-endothelialization and inhibit ISR.
- Introduction of fully biodegradable DES offering a temporary foreign body solution.
Conclusions:
- Coronary stent technology is evolving to improve safety and efficacy.
- Novel DES designs, including biodegradable options, show promise for better treatment of coronary artery disease.
- Future stents aim to restore natural vessel function and allow for potential future interventions.
Abstract:
Cardiovascular disease is the leading cause of death in the western and developing countries. Percutaneous transluminal coronary interventions have become the most prevalent treatment option for coronary artery disease; however, due to serious complications, such as stent thrombosis and in-stent restenosis (ISR), the efficacy and safety of the procedure remain important issues to address. Strategies to overcome these aspects are under extensive investigation. In this review, we summarise relevant milestones during the time to overcome these limitations of coronary stents, such as the development of polymer-free drug-eluting stents (DES) to avoid pro-inflammatory response due to the polymer coating or the developement of stents with cell-directing drugs to, simultaneously, improve re-endothelialisation and inhibit ISR amongst other techniques most recently developed, which have not fully entered the clinical stage. Also the novel concept of fully biodegradable DES featured by the lack of a permanent foreign body promises to be a beneficial and applicable tool to restore a natural vessel with maintained vasomotion and to enable optional subsequent surgical revascularisation.
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